Comparisons between an exact and a metaheuristic algorithm for the molecular distance geometry problem

  • Antonio Mucherino
  • , Leo Liberti
  • , Carlile Lavor
  • , Nelson Maculan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We consider the Discretizable Molecular Distance Geometry Problem (DMDGP), which consists in a subclass of instances of the distance geometry problem related to molecular conformations for which a combinatorial reformulation can be supplied. We investigate the performances of two different algorithms for solving the DMDGP. The first one is the Branch and Prune (BP) algorithm, an exact algorithm that is strongly based on the structure of the combinatorial problem. The second one is the Monkey Search (MS) algorithm, a meta-heuristic algorithm that is inspired by the behavior of a monkey climbing trees in search for food supplies, and that exploits ideas and strategies from other meta-heuristic searches, such Genetic Algorithms, Differential Evolution, and so on. The comparison between the two algorithms is performed on a set of instances related to protein conformations. The used instances simulate data obtained from the Nuclear Magnetic Resonance (NMR), because the typical distances provided by NMR are considered and a predetermined number of wrong distances are included.

Original languageEnglish
Title of host publicationProceedings of the 11th Annual Genetic and Evolutionary Computation Conference, GECCO-2009
PublisherAssociation for Computing Machinery (ACM)
Pages333-340
Number of pages8
ISBN (Print)9781605583259
DOIs
Publication statusPublished - 1 Jan 2009
Event11th Annual Genetic and Evolutionary Computation Conference, GECCO-2009 - Montreal, QC, Canada
Duration: 8 Jul 200912 Jul 2009

Publication series

NameProceedings of the 11th Annual Genetic and Evolutionary Computation Conference, GECCO-2009

Conference

Conference11th Annual Genetic and Evolutionary Computation Conference, GECCO-2009
Country/TerritoryCanada
CityMontreal, QC
Period8/07/0912/07/09

Keywords

  • Branch and prune
  • Combinatorial optimization
  • Distance geometry
  • Monkey search
  • Protein molecules

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